Unlock instant, AI-driven research and patent intelligence for your innovation.

A Method of Power Electronic Controller Based on Magnetic Suspension Bearing

A technology of magnetic suspension bearing and control method, which is applied in the directions of bearings, shafts and bearings, mechanical equipment, etc., can solve the problems of small current ripple of devices, and achieve the effect of resisting electromagnetic interference, reducing cost and volume, and reducing ripple.

Active Publication Date: 2021-02-05
HUAZHONG UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of the prior art, the purpose of the present invention is to provide a method for a power electronic controller based on a magnetic suspension bearing, aiming to solve the problem that the existing controller cannot be compatible with the optimal use of the device and the current ripple is small

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method of Power Electronic Controller Based on Magnetic Suspension Bearing
  • A Method of Power Electronic Controller Based on Magnetic Suspension Bearing
  • A Method of Power Electronic Controller Based on Magnetic Suspension Bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] figure 1 is the structure diagram of a single radial magnetic bearing, the radial magnetic bearing structure has two orthogonal directions x-direction electromagnetic force F x and the electromagnetic force F in the y direction y Need to control. where the electromagnetic force F in the x direction x The electromagnetic force generated by the A1 winding and the electromagnetic force generated by the A2 winding are jointly determined, and the electromagnetic force F in the y direction y The electromagnetic force generated by the A3 winding and the electromagnetic force generated by the A4...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for a power electronic controller based on a magnetic suspension bearing. The current of each winding realizes the control of the electromagnetic force generated by the four windings that control two degrees of freedom in the magnetic suspension bearing. The star-shaped connection of each winding of the present invention only needs four bridge arms to control the four windings of a single eight-pole radial magnetic bearing, which changes the previous structure that a single coil needs two bridge arms to control, and achieves the device At the same time, the controller of the present invention has a zero-level freewheeling state, which can greatly reduce the current ripple.

Description

technical field [0001] The invention belongs to the field of magnetic suspension bearing control, and more specifically relates to a method for a power electronic controller based on a magnetic suspension bearing. Background technique [0002] Electromagnetic bearing refers to the use of electromagnetic force to suspend the rotor, so as to realize the non-contact operation with the stator. Magnetic bearings have the characteristics of no friction, no pollution, and long life. They are used in high-speed, ultra-high-speed and high-performance transmission occasions that require no contact, no lubrication, and no pollution. Foreign countries have entered the stage of practical application since the 1970s, and related products have attracted much attention; domestic research on magnetic suspension bearings has been carried out relatively late. After decades of development, it has received attention from academia and industry, and many universities have begun Carry out research...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/04
Inventor 蒋栋胡载东李田孙宏博
Owner HUAZHONG UNIV OF SCI & TECH